WO2015092072A1 - Surveillance de température de friteuse - Google Patents

Surveillance de température de friteuse Download PDF

Info

Publication number
WO2015092072A1
WO2015092072A1 PCT/EP2014/079054 EP2014079054W WO2015092072A1 WO 2015092072 A1 WO2015092072 A1 WO 2015092072A1 EP 2014079054 W EP2014079054 W EP 2014079054W WO 2015092072 A1 WO2015092072 A1 WO 2015092072A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
casing
temperature sensor
fryer
temperature probe
Prior art date
Application number
PCT/EP2014/079054
Other languages
English (en)
Inventor
Greg Hilliard
Jaspreet KAUR
Original Assignee
Frito-Lay Trading Company Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frito-Lay Trading Company Gmbh filed Critical Frito-Lay Trading Company Gmbh
Publication of WO2015092072A1 publication Critical patent/WO2015092072A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/10—General methods of cooking foods, e.g. by roasting or frying
    • A23L5/11—General methods of cooking foods, e.g. by roasting or frying using oil
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/12—Deep fat fryers, e.g. for frying fish or chips
    • A47J37/1214—Deep fat fryers, e.g. for frying fish or chips the food being transported through an oil-bath
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/12—Deep fat fryers, e.g. for frying fish or chips
    • A47J37/1266—Control devices, e.g. to control temperature, level or quality of the frying liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08—Protective devices, e.g. casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • G01K13/026—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/42—Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature
    • G01K2007/422—Dummy objects used for estimating temperature of real objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2207/00—Application of thermometers in household appliances
    • G01K2207/02—Application of thermometers in household appliances for measuring food temperature
    • G01K2207/06—Application of thermometers in household appliances for measuring food temperature for preparation purposes

Definitions

  • the present invention relates to a method of monitoring the temperature of a fryer and to a temperature probe.
  • a number of foodstuffs are produced by a frying process in which the foodstuffs are conveyed along a fryer containing a body of heated oil.
  • Many snack foods such as potato chips, are produced using such a frying process.
  • the frying parameters can vary along the product flow path and also across the product flow path.
  • the oil temperature can vary along the flow path, or transversely across the flow path at any given longitudinal location.
  • Such frying parameters may vary as a result of a variations in the oil heating apparatus, and/or variations in the properties of the input foodstuffs to be fried. Any uncontrolled or undetected variations in the frying parameters can lead to non-uniform products.
  • one primary frying parameter which may have a large impact on product quality is oil temperature. It is known to use fixed temperature sensors. in a fryer to monitor the production process. However, these sensors are laborious to install and provide rather limited information on the temperature profile of the oil in the fryer, and the temperature to which the products are subjected during the frying process.
  • the present invention provides a method of monitoring the temperature of a fryer, the method comprising the steps of:
  • the fryer fries a foodstuff and steps (iii) and (iv) are carried out by conveying the temperature probe together with the foodstuff along the product flow path of the fryer during the foodstuff frying process.
  • the foodstuff comprises snack foods, for example potato chips.
  • step (iii) the temperature probe is floated along a selected longitudinal flow path at a selected transverse position relative to a centre line of the product flow path.
  • the temperature sensor is adapted to measure a temperature of at least 200°C and the heated oil is at a temperature of at least 200°C.
  • step (iv) a plurality of temperature values sensed by the temperature sensor over a period of time is transmitted by a wireless transmitter within the casing and connected to the temperature sensor.
  • the wireless transmitter transmits series of wireless signals in step (iv), each wireless signal including information associated with a respective temperature value sensed during step (iv), to provide a series of temperature values associated with the respective part of the product flow path.
  • the temperature probe has a density of no more than 925g/dm 3 .
  • the present invention further provides a temperature probe comprising a temperature sensor within a hermetically sealed casing, the temperature sensor being adapted to measure a temperature of at least 200°C and the hermetically sealed casing being thermally resistant to a temperature of at least 200°C, and a wireless transmitter within the casing and connected to the temperature sensor, the wireless transmitter being adapted to transmit a plurality o temperature values sensed by the temperature sensor over a period of time, the temperature probe having a density of no more than 925 /dm 3 .
  • the casing has a substantially spherical exterior surface.
  • the casing is comprised of two hemispheres interconnected by an annular seal member.
  • each hemisphere comprises an annular outer flange and the two flanges are affixed together, e.g. bolted together by a plurality of bolts.
  • the casing has an external diameter of from 5 to 15 cm, optionally from 8 to 12 cm, further optionally about 10 cm.
  • the casing is composed of stainless steel.
  • the temperature sensor comprises a thermocouple.
  • the temperature sensor is mounted within a polymer capsule, for example a PTFE capsule.
  • thermal insulation within the casing at least partly surrounds the polymer capsule.
  • the temperature sensor is fixedly mounted within the casing.
  • Figure 1 is a schematic perspective view of a temperature probe in accordance with an embodiment of the present invention.
  • Figure 2 is a schematic perspective view of a temperature sensor in the probe of Figure 1 ;
  • FIG 3 schematically illustrates a plan view of a fryer used in the monitoring method of an embodiment of the present invention.
  • a temperature probe 2 in accordance with an embodiment of the present invention.
  • the temperature probe 2 comprises a temperature sensor 4 within a hermetically sealed casing 6.
  • the temperature sensor 4 is adapted to measure a temperature of at least 200°C. in this embodiment, the temperature sensor 4 comprises a thermocouple 10.
  • the temperature sensor 4 is mounted within a polymer capsule 8, for example composed of PTFE, part of which is shown in Figure 2. Thermal insulation (not shown) within the casing 6 at least partly surrounds the polymer capsule 8. The temperature sensor 4 is fixedly mounted within the casing 6.
  • the casing 6 is thermally resistant to a temperature of at least 200°C, and typically the casing 6 is composed of stainless steel.
  • the casing 6 has a substantially spherical exterior surface 12.
  • the casing 6 is comprised of two hemispheres 14, 16 interconnected by an annular seal member 18, for example composed of a thermally resistant elastomer.
  • Each hemisphere 14, 16 comprises an annular outer flange 20, 22 and the two flanges 20, 22 are bolted together by a plurality of bolts 24.
  • the casing 6 has an external diameter of from 5 to 15 cm, for example from 8 to 12 cm, such as about 10 cm.
  • a wireless transmitter 26 is located within the casing 6 and is connected to the temperature sensor 4.
  • the wireless transmitter 26 is adapted to transmit a plurality of temperature values sensed by the temperature sensor 4 over a period of time.
  • the transmissions are receiver by a receiver and recorded.
  • the temperature probe 2 has a density of no more than 925g/dm 3 . This provides that the temperature probe 2 can float in an edible oil which is typically used for frying, for example sunflower oil which is used for frying many snack foods such as potato chips and has a specific gravity of about 920g/dm ⁇
  • the temperature probe 2 can be used in a method of monitoring the temperature of a fryer.
  • the fryer 50 contains a body of heated oil 52.
  • the temperature sensor 4 is adapted to measure a temperature of at least 200°C and the heated oil 52 is at a temperature of at least 200°C.
  • the fryer 50 has a product input end 54, at which foodstuffs 58 to be fried are added to the fryer oil 52, and a product output end 56, at which fried foodstuffs 58 are removed from the fryer oil 52, with a product flow path 60 therebetween.
  • the foodstuffs 58 may comprise snack foods, for example potato chips
  • the temperature probe 2 is disposed in the fryer 50 so as to be within the body of heated oil 52. Since the density of the temperature probe 2 is lower than the specific gravity of the oil 52, the temperature probe 2 floats on the surface of the oil 52. The temperature probe 2 is floated on the oil 52 along at least a part of the product flow path 60 of the fryer 50. The temperature probe 4 is conveyed together with the foodstuff 58 along the product flow path 60 of the fryer 50 during the foodstuff frying process. A temperature profile corresponding to the temperature sensed by the temperature sensor 4 of the temperature probe 2 along the respective part of the product flow path 60 is recorded.
  • the fryer 50 includes conventional conveying apparatus 62, such as a helical screw, paddles, flights, etc. to convey the product through the fryer 50.
  • the temperature probe 2 may be floated along a selected longitudinal flow path 64 at a selected transverse position relative to a centre line 66 of the product flow path 60.
  • a plurality of temperature values sensed by the temperature sensor 4 over a period of time is transmitted by the wireless transmitter 26 within the casing 6.
  • the transmissions are received by a receiver 68 and recorded to provide a temperature profile along the fryer 50.
  • the wireless transmitter 26 transmits series of wireless signals in step (iv), each wireless signal including information associated with a respective temperature value sensed by the temperature sensor 4, to provide a series of temperature values associated with the respective part of the product flow path 60.
  • the temperature probe 2 By providing a temperature probe 2 which can float in the fryer oil and is dimensioned so as to be substantially the same size as the foodstuff being fried, the temperature probe 2 is able to follow the path taken by products through the fryer, including floating on the surface of the oil and being temporarily partly or wholly submerged in the oil when urged downwardly by any conveying apparatus in the fryer, and thereby provide a substantially continuous temperature profile which is actually experienced by the foodstuff during its passage through the fryer.
  • the temperature probe 2 permits the temperature of a fryer easily to be monitored using a temperature probe which is inexpensive to manufacture and deploy.
  • the temperature probe 2 provides a very versatile device for measuring temperature within the fryer at various locations.
  • the preferred embodiment of the present invention can therefore provide a wireless 'floating ball' data logger will enables the measurement of temperature along all or part of the journey that the foodstuffs, such as potato slices wen manufacturing potato chips, take in the fryer by mimicking the slices and whilst doing so it builds a temperature profile.
  • the wireless data logger can be selectively flowed along the left, centre and/or right of the fryer to understand how the temperature profile differs in the different transverse zones across the transverse width of the fryer. This can provide information on how the cooking process differs for slices that enter the fryer in the three different transverse zones too.
  • the wireless data logger can also provide temperature information that can be employed to minimise product defects, because the data logger can provide temperature data indicating hotspots or cool oil regions and hence be employed to avoid overcooking or undercooking the foodstuffs during the frying process.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Frying-Pans Or Fryers (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

La présente invention concerne un procédé de surveillance de température de friteuse, le procédé comprenant les étapes consistant à : utiliser une sonde thermique comprenant un capteur de température à l'intérieur d'un boîtier hermétiquement clos ; utiliser une friteuse, la friteuse contenant un corps d'huile chauffé, la friteuse comportant une extrémité d'entrée de produit et une extrémité de sortie de produit, un trajet de circulation de produit étant agencé entre celles-ci ; mettre la sonde thermique en flottement sur l'huile le long d'au moins une partie du trajet de circulation de produit de la friteuse, la sonde thermique présentant une masse volumique inférieure au poids spécifique de l'huile ; et enregistrer un profil de température correspondant à la température détectée au moyen du capteur de température de la sonde thermique le long de la partie respective du trajet de circulation de produit. L'invention concerne également une sonde thermique comprenant un capteur de température à l'intérieur d'un boîtier hermétiquement clos, le capteur de température étant adapté à mesurer une température supérieure ou égale à 200 °C et le boîtier hermétiquement clos étant résistant thermiquement à une température supérieure ou égale à 200 °C, et un émetteur sans fil disposé à l'intérieur du boîtier et connecté au capteur de température, l'émetteur sans fil étant adapté à émettre une pluralité de valeurs de température détectées au moyen du capteur de température sur une période de temps, la sonde thermique présentant une masse volumique inférieure ou égale à 925 g/dm3, et le boîtier présentent éventuellement une surface extérieure sensiblement sphérique.
PCT/EP2014/079054 2013-12-20 2014-12-22 Surveillance de température de friteuse WO2015092072A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1322754.1 2013-12-20
GB1322754.1A GB2521462B (en) 2013-12-20 2013-12-20 Monitoring fryer temperature

Publications (1)

Publication Number Publication Date
WO2015092072A1 true WO2015092072A1 (fr) 2015-06-25

Family

ID=50071285

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/079054 WO2015092072A1 (fr) 2013-12-20 2014-12-22 Surveillance de température de friteuse

Country Status (2)

Country Link
GB (1) GB2521462B (fr)
WO (1) WO2015092072A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095612A1 (fr) * 2015-12-01 2017-06-08 Maxim Integrated Products, Inc. Indicateur d'efficacité de stérilisation utilisant un enregistreur de données avec application logicielle/en nuage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057773A (en) * 1994-02-25 2000-05-02 Shukla; Ashok K. Unanchored sensor for fluid characteristics
US20020046582A1 (en) * 1997-06-22 2002-04-25 Rupprecht Gabriel Signaling the cooking state of food cooked in pieces
WO2012104230A1 (fr) * 2011-02-01 2012-08-09 Siemens Aktiengesellschaft Dispositif et procédé pour déterminer des valeurs de mesure dans un milieu en circulation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6958693B2 (en) * 2002-05-24 2005-10-25 Procter & Gamble Company Sensor device and methods for using same
GB2463893A (en) * 2008-09-26 2010-03-31 Lyons Seafoods Ltd Determining the temperature of a cooking foodstuff

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057773A (en) * 1994-02-25 2000-05-02 Shukla; Ashok K. Unanchored sensor for fluid characteristics
US20020046582A1 (en) * 1997-06-22 2002-04-25 Rupprecht Gabriel Signaling the cooking state of food cooked in pieces
WO2012104230A1 (fr) * 2011-02-01 2012-08-09 Siemens Aktiengesellschaft Dispositif et procédé pour déterminer des valeurs de mesure dans un milieu en circulation

Also Published As

Publication number Publication date
GB2521462B (en) 2017-05-24
GB2521462A (en) 2015-06-24
GB201322754D0 (en) 2014-02-05

Similar Documents

Publication Publication Date Title
CN103702915B (zh) 具有传感器的散装产品传送机
KR102194525B1 (ko) 열감지기를 갖는 조리용기
AU2016389707B2 (en) Non-intrusive process fluid temperature calculation system
JP6662859B2 (ja) 多変数導波レーダプローブ
CN101819196A (zh) 食用油的质量监视系统
US8463423B2 (en) Methods and systems for measurement and control of process parameters
CN109276147B (zh) 一种获得食物内部温度的方法及烹饪器具
CN105531571A (zh) 冷点肉探头
US20200088663A1 (en) Process vessel insulation monitoring
WO2015092072A1 (fr) Surveillance de température de friteuse
ITUB20150948A1 (it) Elemento di fissaggio, uso di un sensore integrato nell'elemento di fissaggio e metodo per rilevare un flusso termico all'interno di organi meccanici
US3301047A (en) Wave gage arrays for obtaining ocean-wave spectra
KR20100115628A (ko) 프라이어용 튀김기름 검사장치
EP2868241A1 (fr) Appareil d'ébullition d''ufs
CN106338319A (zh) 多路料位感测探头
US10466188B2 (en) Thermal simulator
CN207082007U (zh) 船舶机舱监视报警训练系统
CN210198493U (zh) 一种水利及农业灌溉热式液位计
EP3365675B1 (fr) Surveillance de paramètre biodégradable
SA520411301B1 (ar) مصور مرئي لدفق ومستوى متعدد الطبقات
CN206515188U (zh) 乳化炸药密度检测装置
WO2023280852A3 (fr) Moyen de détection d'huile de friture et procédé de gestion d'huile de friture pour un équipement de friteuse industrielle
Berrie Sensors for automated food process control: An introduction
CN204924460U (zh) 一种煤仓热点探测器
Barwicki et al. Utilization of acoustic emission for monitoring of different processes in agriculture

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14815396

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14815396

Country of ref document: EP

Kind code of ref document: A1